package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * @author: 爱学Java 不想秃头的 KK
 * @date: 2023/10/23 13:42
 * @version: 1.0
 * @Created with IntelliJ IDEA.
 * @Description:
 */


/**
 * 集中处理所有异常,返回common包中的枚举异常处理状态码和报错信息
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {


    /**
     * 精确处理MethodArgumentNotValidException类型的异常
     * @param e
     * @return
     */
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        log.info("数据校验出现问题{},异常类型:{}",e.getMessage(),e.getClass());
        BindingResult bindingResult = e.getBindingResult();

        Map<String,String> errorMap = new HashMap<>();
        bindingResult.getFieldErrors().forEach((fieldError)->{
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });
        return  R.error(BizCodeEnum.VAILD_Exception.getCode(),BizCodeEnum.VAILD_Exception.getMsg()).put("data",errorMap);
    }


    /**
     * 能够处理任意异常
     * @param throwable
     * @return
     */
  /*  @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
        return R.error(BizCodeEnum.UNKNOW_Exception.getCode(), BizCodeEnum.UNKNOW_Exception.getMsg());
    }*/

}
